I found it!

Nita, this one’s for you!  I knew it had to be in the house somewhere!
Mango Salsa 
1 c. diced tomato
1 c. diced mango
1/4 c. diced red pepper
1/4 c. red (or green) onion
1/4 c. chopped cilantro
3 T. lime juice
1 T. minced jalapeno
salt to taste
Mix together.  Great over fish tacos!